Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!selfless.tophat.at!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.018 X-Spam-Evidence: '*H*': 0.96; '*S*': 0.00; 'python.': 0.04; 'plus,': 0.09; 'subject:string': 0.09; 'stored': 0.13; 'somehow,': 0.16; 'subject:formatting': 0.16; 'subject:vs.': 0.16; 'received:209.85.210.174': 0.19; 'received:mail- iy0-f174.google.com': 0.19; 'seems': 0.20; 'variable': 0.21; 'this?': 0.22; 'converts': 0.23; 'fine,': 0.23; 'times,': 0.25; 'string': 0.26; "i'm": 0.27; 'bit': 0.28; 'variables': 0.29; 'received:192.168.1.3': 0.30; 'strings,': 0.30; 'message- id:@gmail.com': 0.32; 'to:addr:python-list': 0.34; 'instead': 0.34; 'header:User-Agent:1': 0.34; "isn't": 0.35; 'supposed': 0.35; 'but': 0.37; 'could': 0.37; 'received:192': 0.38; 'received:google.com': 0.38; 'received:209.85': 0.38; 'case': 0.39; 'received:192.168.1': 0.39; 'skip:e 20': 0.39; "there's": 0.39; 'to:addr:python.org': 0.39; 'received:209': 0.40; 'where': 0.40; 'subject:. ': 0.66; 'design.': 0.73; 'it"': 0.84 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject :x-enigmail-version:content-type:content-transfer-encoding; bh=AlbnogDbXGR/wftoYrhd0BA6vI+Pc3l1Isb21LvRhk4=; b=qFWGyLm11ugMrRPrVVkR1WljIgMr26KW8OrVK4vYI98haKNPp7ja+9nMkcMgomn0aE unyXV2m9lNA2nOCP5yTpx6ZG5bJ33sF4p2fdHeZgAKyZ1kaSi1sZJrjZVcQ8v0o6Ts3B a1dpHNjlJ15XMMOQSyGVwGB3z0MEW88+rL93c= Date: Fri, 08 Jul 2011 15:18:37 -0500 From: Andrew Berg User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:5.0) Gecko/20110624 Thunderbird/5.0 MIME-Version: 1.0 To: "comp.lang.python" Subject: String concatenation vs. string formatting X-Enigmail-Version: 1.2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 14 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1310156331 news.xs4all.nl 21826 [2001:888:2000:d::a6]:34774 X-Complaints-To: abuse@xs4all.nl Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:9093 Is it bad practice to use this > logger.error(self.preset_file + ' could not be stored - ' + > sys.exc_info()[1]) Instead of this? > logger.error('{file} could not be stored - > {error}'.format(file=self.preset_file, error=sys.exc_info()[1])) Other than the case where a variable isn't a string (format() converts variables to strings, automatically, right?) and when a variable is used a bunch of times, concatenation is fine, but somehow, it seems wrong. Sorry if this seems a bit silly, but I'm a novice when it comes to design. Plus, there's not really supposed to be "more than one way to do it" in Python.